Escape The Painter

In this game in which you are a painter. One day you got a new job to repaint a big house. The owners left in a travel and left you the keys of the house. They want the house to be ready until they return, so you started working right over. You were faster than you thought. After a few days you finished the work. In the last day you went to the house to make sure that everything was fine and make some last retouching. While there you lost the house keys. Now you are trapped inside. You will have to find those keys or another way to escape from the house